February 23-March 16 Plotters discuss targets. Madrid bombing on March 11. On February 28, Sidique Khan and Tanweer seen with plotters

March 19 In Khyam's car, Waheed Mahmood asks: "Is it worth getting all the brothers together tonight and asking who would be ready to go?" Of Madrid, Mahmood says: "Spain was a beautiful job ... so much impact"

March 23 Khyam travels in convoy with Sidique Khan and Tanweer to addresses in Slough and east London

March 29 Khawaja arrested in Canada

March 30 Amin held in Pakistan. Others held in south-east England

February 8 2005 Amin arrested when he flies into London from Islamabad